Enter your period for at least two consecutive cycles, and iPeriod® calculates your average duration, cycle length and estimates the dates of your next expected periods, fertile days and ovulation! Each time new data is entered, statistics are updated.

DIFFERENCE FROM OTHER APPS

The only app that truly graphically displays your data on the calendar... other apps simply place a single symbol to represent all symptoms.

• The MOST accurate: predictions are based on your cycles (not averages) and improve over time

• The MOST customization: adjustable luteal phase, hide symptoms not used by you, manage which icons appear on calendar